linux-kernel - Re: [PATCH 1/6] mm/page_alloc: Add page->buddy_list and page->pcp

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Message-ID: <8e4ae2e2-6bcb-b552-4813-879b31fce5a6@suse.cz>
Date:   Thu, 19 May 2022 11:36:58 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Mel Gorman <mgorman@...hsingularity.net>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Nicolas Saenz Julienne <nsaenzju@...hat.com>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Michal Hocko <mhocko@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>
Subject: Re: [PATCH 1/6] mm/page_alloc: Add page->buddy_list and
 page->pcp_list

On 5/12/22 10:50, Mel Gorman wrote:
> The page allocator uses page->lru for storing pages on either buddy or
> PCP lists. Create page->buddy_list and page->pcp_list as a union with
> page->lru. This is simply to clarify what type of list a page is on
> in the page allocator.
> 
> No functional change intended.
> 
> [minchan: Fix page lru fields in macros]
> Signed-off-by: Mel Gorman <mgorman@...hsingularity.net>
> Tested-by: Minchan Kim <minchan@...nel.org>
> Acked-by: Minchan Kim <minchan@...nel.org>

Acked-by: Vlastimil Babka <vbabka@...e.cz>